Mothers of children who suffer from diabetes have gathered Friday around 10 am in front of the Bulgarian Health Ministry over the insulin crisis that affect over 50 000 diabetics using the medicine.

"This is not a protest rally, but a warning towards the officials, that we do not agree to change the type of insulin our children use", Chair of the National Association of Children with Diabetes, Elisaveta Kotova, said for Darik Radio.

The healthcare company Novo Nordisk has refused to sign a contract with The National Health Insurance Fund (NZOK) due to the new lower prices offered by the Bulgarian side.

If until the end of Thursday there is no agreement, the diabetics will have to switch to another type of insulin, NZOK Director, Rumyana Todorova, said.

Some patients, however, may not get used to the new insulin, and will have to be hospitalized.

"Each change in the type of insulin leads to very serious negative medical effects for patient, and they have to struggle for their lives. The Health Minister must take quick action and should not leave the decision to some committee", chair of the "Diabetes" association, Dimitar Bogdanov, commented earlier.